论文部分内容阅读
黄连木(Pistacia chinensis)是一种重要的木本油料植物,其果实中贮存着大量的油脂,这些油脂分子主要存在于果皮、种皮和胚的油体中。在光学显微镜下观察发现,果皮中油的积累开始于果实发育晚期,果皮开始变红时;种皮中油体的发育开始于果实发育早期;胚中油体的发育开始于球形胚时期。透射电子显微镜观察结果显示,种皮和胚中的油体形成于内质网,而果皮中的油体则分别由内质网、质体和液泡形成。尼罗红荧光标记显示,内质网形成的油体始终以独立单元的形式存在。种皮和胚中也贮藏蛋白体,但发育晚于油体。果皮、种皮和子叶中都贮存少量的淀粉粒。
Pistacia chinensis is an important woody oil plant, which contains large amounts of fat in its fruits. These oil molecules are mainly found in the oil bodies of the peel, seed coat and embryo. Under light microscope, it was found that the accumulation of oil in the pericarp started at the late stage of fruit development and the pericarp began to turn red. The development of oil body in the seed coat started at the early stage of fruit development. The development of oil body in the embryo started at the stage of globular embryo. Transmission electron microscopy showed that the oil bodies in the seed coat and embryo were formed in the endoplasmic reticulum, while the oil bodies in the pericarp were formed by the endoplasmic reticulum, plastid and vacuole, respectively. Nile red fluorescent markers showed that the endoplasmic reticulum oil body always exists in the form of independent units. The seed coat and embryo are also stored protein body, but development later than the oil body. Small amounts of starch grains are stored in the peel, seed coat and cotyledons.